KoreGUI: renaming shader class
Merge branch 'hax' of github.com:KoRE0/KoRE into hax

Conflicts:
	src/KoRE/Common.h
Merge branch 'hax' of github.com:KoRE0/KoRE into hax
added shader to gui, fixed path focus problem
Added empty files for sequence
implemented selection in sceneviewer
Merge branch 'hax' of github.com:KoRE0/KoRE into hax
Added new operations UseFBO and UseShaderProgram
Further developed FBOs. There is a Backbuffer FBO now which is also already used by main